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Diversity–productivity–stability relationship in freshwater ecosystems: Whole-systemic view of all trophic levels by ICHIRO AOKI is a Environmental Science article available to read on EtoBox.

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The idea of the diversity–productivity relationship in ecology was originated by Charles Darwin more than 100 years ago and was highlighted by McNaughton in 1993. There have been extensive studies on this relationship, mostly conducted in grasslands. Many studies assert that a high level of biodiversity leads to high primary productivity, in accord with Darwin. However, these studies have mostly been done in grasslands (primary producer) and do not take into account effects from other trophic levels. The possibility remains that the positive diversity–production relationship does not hold in other types of ecological systems and that multitrophic effects influence and modify the relationship. In the present study, the diversity–productivity relationship is examined for freshwater foodwebs, including whole trophic compartments, by using indices of diversity and productivity more suitable for a whole systemic study on ecological systems. It seems that there are two trends in the relationship: productivity increases with the increase of diversity in ecosystems when diversity is small, and decreases with diversity in ecosystems when diversity is large. The first trend may be due to nut

Who reads Diversity–productivity–stability relationship in freshwater ecosystems: Whole-systemic view of all trophic levels?

Author

ICHIRO AOKI

Publisher

Springer; Wiley (Blackwell Publishing); Springer Verlag; Wiley (ISSN 0912-3814)

Published

2003

Language

EN

Field

Environmental Science (Physical Sciences)